PIC18F4585T-I/PT - 48KB Flash, 40MHz 8-bit MCU w/ ECAN | Microchip
料号： PIC18F4585T-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $8.96 | $8.96 |
| 10 | $8.05 | $80.50 |
| 100 | $7.1 | $710.00 |
| 500 | $6.2 | $3,100.00 |
| 1,000 | $5.45 | $5,450.00 |
PIC18F4585T-I/PT 概述
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals onto one die. The PIC18 family sits in the hierarchy as: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. PIC18F devices use a RISC-based Harvard architecture with 16-bit wide instructions, 8-bit data path, and 31-level hardware stack, balancing deterministic real-time response with on-chip peripherals suited for embedded control.
Key features include ECAN 2.0B active module with hardware filtering, 10-bit Analog-to-Digital Converter (A/D) with up to 13 input channels, nanoWatt Technology for power-managed sleep modes, 36 digital I/O pins, and Capture/Compare/PWM (CCP) plus Enhanced CCP modules for motor and power control. The integrated ECAN makes the part well suited to industrial and automotive in-vehicle networks.
The PIC18F4585T-I/PT uses an enhanced Flash memory architecture supporting self-programming, IEEE 1149.1-compliant JTAG boundary scan, and ICSP (In-Circuit Serial Programming) via two pins. The "T" suffix indicates Tape and Reel packaging for high-volume assembly, while "I" denotes the industrial temperature grade (-40C to +85C).
Typical applications include CAN bus nodes in industrial automation, automotive body electronics, building automation HVAC controls, sensor data aggregation nodes, and consumer appliances requiring reliable 5V operation. The on-board ECAN reduces external component count versus designs using a stand-alone CAN transceiver IC plus discrete logic.
When designing with this MCU, ensure decoupling of VDD/VSS with 100 nF ceramic capacitors placed within 5 mm of each supply pin. The ECAN module requires a 3.3V or 5V compatible CAN transceiver such as MCP2551 or MCP2561 on the bus side; the internal ECAN handles only protocol framing.
This page synthesizes distributor stock and pricing, drop-in package-compatible alternatives, application-circuit design notes, and comparison tables not consolidated in the manufacturer datasheet, providing engineers a single reference for selecting, sourcing, and implementing PIC18F4585T-I/PT.
直接替换替代料： PIC18F4585T-I/PT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC18F4585T-I/PT （相同外形与封装尺寸） ——差异在于 Package, Operating Temperature, Timers, ADC, Core Architecture.
快速对比工具——选择替代料号进行并排对比：
PIC18F4585-I/PT
✅ 直接替换✓ 有现货
$5.73 / 个
查看数据手册 →PIC18F4480-I/PT
✅ 直接替换✓ 有现货
$4.85 / 个
查看数据手册 →PIC18F46K22-I/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.32 / 个
查看数据手册 →PIC18F4580-I/PT
✅ 直接替换📋 参考替代料（不在目录中）
PIC18F4550-I/PT
✅ 直接替换✓ 有现货
$4.95 / 个
查看数据手册 →PIC18F4585T-I/PT 最大额定值与电气特性
| Program Memory Type | Flash |
| Program Memory Size | 48 KB (24K x 16 words) |
| RAM Size | 3,328 bytes |
| EEPROM Size | 1 KB |
| CPU Core | PIC18 8-bit RISC |
| 最大时钟频率 | 40 MHz |
| Instruction Cycle | 200 ns (4 clock cycles per instruction) |
| Supply Voltage (VDD) | 4.2 V to 5.5 V |
| 工作温度范围 | -40 C to +85 C (Industrial) |
| I/O Pins | 36 |
| A/D Converter | 10-bit, up to 11 input channels (per datasheet) |
| CAN Module | ECAN 2.0B active |
| PWM Modules | 1 CCP + 1 ECCP |
| Communication Peripherals | ECAN, UART, SPI, I2C, MSSP |
| Timers | 4 (Timer0/1/2/3) |
| 封装 | 44-pin TQFP (PT), 10x10 mm |
| 安装类型 | Surface Mount |
| MSL 等级 | 3 (per JEDEC J-STD-020) |
| RoHS 状态 | Compliant |
| Lead-Free / Halogen-Free | Yes |
| Brown-out Reset | Yes, programmable |
| Power-Saving Modes | nanoWatt Technology (Idle, Sleep, RC_RUN) |
PIC18F4585T-I/PT 引脚配置
| 引脚 1 | RC2/CCP1 — I/O pin / Capture-Compare-PWM 1 output |
| 引脚 2 | RC3/SCK/SCL — I/O / SPI clock / I2C clock |
| 引脚 3 | RC4/SDI/SDA — I/O / SPI data in / I2C data |
| 引脚 4 | RC5/SDO — I/O / SPI data out |
| 引脚 5 | RC6/TX/CK — I/O / EUSART asynchronous transmit / clock |
| 引脚 6 | RC7/RX/DT — I/O / EUSART asynchronous receive / data |
| 引脚 7 | RD0/ECANRX — I/O / ECAN receive input |
| 引脚 8 | RD1/ECANTX — I/O / ECAN transmit output |
| 引脚 9 | RD2 — I/O port D bit 2 |
| 引脚 10 | RD3 — I/O port D bit 3 |
| 引脚 11 | RC0/T1OSO/T1CKI — I/O / Timer1 oscillator out / Timer1 clock in |
| 引脚 12 | RC1/T1OSI/ECCP2 — I/O / Timer1 oscillator in / Enhanced CCP2 output |
| 引脚 13 | RC2/CCP1 — I/O / CCP1 output (alternate location) |
| 引脚 14 | OSC1/CLKI/RA7 — Crystal oscillator input / external clock / GPIO |
| 引脚 15 | OSC2/CLKO/RA6 — Crystal oscillator output / clock out / GPIO |
| 引脚 16 | T0CKI/RA3 — Timer0 clock input / GPIO |
| 引脚 17 | RA0/AN0 — GPIO / Analog input 0 |
| 引脚 18 | RA1/AN1 — GPIO / Analog input 1 |
| 引脚 19 | RA2/AN2/VREF- — GPIO / Analog input 2 / ADC VREF- |
| 引脚 20 | RA3/AN3/VREF+ — GPIO / Analog input 3 / ADC VREF+ |
| 引脚 21 | RA4/T0CKI — GPIO / Timer0 clock (alternate) |
| 引脚 22 | RA5/AN4/SS — GPIO / Analog input 4 / SPI slave select |
| 引脚 23 | RE0/RD/AN5 — GPIO / parallel slave port read / Analog input 5 |
| 引脚 24 | RE1/WR/AN6 — GPIO / parallel slave port write / Analog input 6 |
| 引脚 25 | RE2/CS/AN7 — GPIO / parallel slave port chip select / Analog input 7 |
| 引脚 26 | VDD — Positive supply (4.2V to 5.5V) |
| 引脚 27 | VSS — Ground reference |
| 引脚 28 | OSC1/RA7 — Oscillator input (alternate) |
| 引脚 29 | OSC2/RA6 — Oscillator output (alternate) |
| 引脚 30 | RB0/INT0/FLT0 — GPIO / external interrupt 0 / PWM fault input |
| 引脚 31 | RB1/INT1 — GPIO / external interrupt 1 |
| 引脚 32 | RB2/INT2/CANTX — GPIO / external interrupt 2 / ECAN TX (alt) |
| 引脚 33 | RB3/CANRX — GPIO / ECAN RX (alt) |
| 引脚 34 | RB4 — GPIO / interrupt-on-change |
| 引脚 35 | RB5 — GPIO / interrupt-on-change |
| 引脚 36 | RB6/PGC — GPIO / interrupt-on-change / ICSP clock |
| 引脚 37 | RB7/PGD — GPIO / interrupt-on-change / ICSP data |
| 引脚 38 | MCLR/VPP/RE3 — Master clear reset / programming voltage / GPIO |
| 引脚 39 | RD4 — I/O port D bit 4 |
| 引脚 40 | RD5 — I/O port D bit 5 |
| 引脚 41 | RD6 — I/O port D bit 6 |
| 引脚 42 | RD7 — I/O port D bit 7 |
| 引脚 43 | VSS — Ground reference (second) |
| 引脚 44 | VDD — Positive supply (second) |
典型应用
PIC18F4585T-I/PT 适用于 6 应用s: Industrial CAN Bus Sensor Node, Automotive Body Electronics ECU, Building Automation HVAC Controller, Consumer Appliance User Interface Board, Sensor Data Aggregator Hub, Small DC Motor Control Board.
Industrial CAN Bus Sensor Node
The PIC18F4585T-I/PT is well suited to industrial CAN bus sensor nodes because its integrated ECAN 2.0B active peripheral offloads protocol framing from the CPU, leaving the 40 MHz / 10 MIPS PIC18 core free for sensor acquisition and data pre-processing. Its 10-bit ADC with up to 11 input channels handles temperature, pressure, or current sensing directly, while the 36 GPIO pins drive status LEDs, switches, and digital sensor I/O. The 5V VDD matches industrial 24V-bus-derived rails after regulation, simplifying PSU design. Compared with discrete CAN solutions, the integrated module reduces PCB area and BOM cost. Use it in 24V factory automation and process-control nodes where deterministic real-time response is required.
推荐
Automotive Body Electronics ECU
The PIC18F4585T-I/PT fits non-safety automotive body-electronics modules such as HVAC, lighting, mirror control, and seat-position ECUs that require CAN bus connectivity and industrial -40C to +85C operation. Its nanoWatt Technology puts the ECU into single-digit microamp Sleep current when the bus is silent, preserving vehicle battery life during parked periods. The 48 KB Flash accommodates protocol stacks, while the 1 KB EEPROM stores calibration data non-volatilely. CCP/ECCP modules drive relays, motors, and dimming PWM loads directly. For under-hood or AEC-Q100 safety-critical modules, upgrade to a graded PIC18 K-series or dsPIC33 part instead.
推荐
Building Automation HVAC Controller
The PIC18F4585T-I/PT serves building-automation HVAC controllers that need CAN or UART connections to indoor air-quality, damper, and chiller sub-systems. Its 36 I/O pins read pushbuttons, rotary encoders, NTC thermistors, and occupancy sensors while driving triac-gated fans, valves, and 7-segment or LCD status displays. The industrial temperature grade operates reliably inside mechanical rooms where ambient temperature can rise above 70C. The 48 KB Flash holds BACnet or Modbus-to-CAN bridging firmware, and the 3,328-byte RAM accommodates message buffers without dynamic allocation.
推荐
Consumer Appliance User Interface Board
The PIC18F4585T-I/PT is appropriate for high-end consumer-appliance user-interface boards in washing machines, dishwashers, induction cooktops, and oven-front panels where a single 5V MCU must drive both HMI and CAN communication to the power-and-motor board. The 10-bit ADC reads knob positions and temperature sense inputs, while the PWM channels control LED dimming, beeper tones, and relay drivers. The 48 KB Flash supports multi-language fonts and graphic icon libraries, and the 1 KB EEPROM stores user-defined settings. Industrial temperature grade accommodates the enclosed-cabinet heat-rise environment inside appliances.
推荐
Sensor Data Aggregator Hub
The PIC18F4585T-I/PT fits sensor-data aggregator hubs that fan-in UART, SPI, and I2C sensor traffic and forward aggregated frames over CAN to a master controller. The MSSP peripheral simultaneously drives SPI and I2C sensors, while the UART handles RS-485 modem links. The 48 KB Flash holds sensor drivers and timestamp-aggregation algorithms, and the ECAN peripheral publishes aggregated telemetry frames at deterministic intervals. Industrial temperature operation suits outdoor enclosure or factory-floor mounting.
推荐
Small DC Motor Control Board
The PIC18F4585T-I/PT drives small DC and brushless-DC motors in fans, blowers, pumps, and conveyor segments via its CCP and Enhanced CCP (ECCP) modules. The ECCP provides complementary PWM outputs with programmable dead-band, eliminating external gate-driver logic for half-bridge or full-bridge FETs. The QEI (Quadrature Encoder Interface) reads incremental encoder feedback for closed-loop speed/position control. The 40 MHz CPU closes the loop fast enough for 60 Hz response bandwidth, and the 36 I/O lines carry limit switches, brake relays, and LED status indicators.
推荐
推荐产品汇总
工程参考数据： PIC18F4585T-I/PT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC18F4585-I/PT | PIC18F4480-I/PT | PIC18F46K22-I/PT | PIC18F4580-I/PT | PIC18F4550-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-44 (10x10 mm) | TQFP-44 - same | TQFP-44 - same | TQFP-44 - same | TQFP-44 - same | TQFP-44 - same |
| Program Memory (Flash) | 48 KB | 48 KB | 16 KB | 64 KB | 32 KB | 32 KB |
| RAM Size | 3,328 bytes | 3,328 bytes | 768 bytes | 3,896 bytes | 1,536 bytes | 2,048 bytes |
| Maximum Clock | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 64 MHz / 16 MIPS | 40 MHz / 10 MIPS | 48 MHz / 12 MIPS |
| CAN Module | ECAN 2.0B active | ECAN 2.0B active | No CAN | No CAN (ECAN via PPS on K22) | No CAN | No CAN |
| USB Peripheral | No | No | No | No | No | USB 2.0 FS Device/Host/OTG |
| Supply Voltage | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V | 2.3 V to 5.5 V | 4.2 V to 5.5 V | 4.2 V to 5.5 V |
| A/D Converter | 10-bit, up to 11 channels | 10-bit, up to 11 channels | 10-bit, up to 11 channels | 10-bit, up to 28 channels | 10-bit, up to 11 channels | 10-bit, up to 13 channels |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
关键差异点
- Integrated ECAN 2.0B active peripheral （对比 PIC18F4580-I/PT)
- Larger Flash + RAM memory （对比 PIC18F4580-I/PT)
- Dedicated 48 KB Flash variant with same footprint （对比 PIC18F4480-I/PT)
设计说明
Decouple each VDD/VSS pair with a 100 nF X7R ceramic capacitor placed within 5 mm of the IC pins, and add a bulk 10 uF tantalum or aluminum-polymer capacitor near the device. The PIC18F4585T-I/PT has two VDD pins (26, 44) and two VSS pins (27, 43); both must be connected. AVdd/AVss share the analog supply; if ADC accuracy is critical, isolate AVdd with a ferrite bead or 10 ohm resistor plus a dedicated 10 uF/100 nF decoupling pair.
Route the ECAN RX/TX traces (RD1 = ECANTX, RD0 = ECANRX) as short, matched-length differential pairs to the external MCP2551/MCP2561 transceiver. Keep bus length under 100 mm and avoid routing near high-frequency switching nodes. MCLR (pin 38) requires a 10 kohm pull-up to VDD plus a 100 nF cap to ground for noise immunity, with a diode to VDD for fast discharge during in-circuit programming per Microchip's ICSP recommendations.
Do not exceed VDD of 5.5 V absolute maximum; the PIC18F4585T-I/PT is NOT a 3.3V part - operation below 4.2 V is out-of-spec. Ensure the crystal or external oscillator drive level stays within the 40 MHz rating, and that the ECAN peripheral is correctly configured for the bus baud rate (the SJW, PRSEG, SEG1PH, SEG2PH, BRP registers must be tuned per ECAN timing). Per datasheet, unused I/O pins should be configured as outputs low to minimize supply current in Sleep mode.
Estimated: At typical 25C ambient with 40 MHz CPU at 5V VDD and ECAN active, the PIC18F4585T-I/PT draws approximately 16 mA (about 80 mW). At extended industrial +85C ambient inside a sealed enclosure, junction rise is negligible for the TQFP-44 package (theta_JA approximately 50 C/W), keeping Tj well below the +150C absolute maximum. Designers planning fanless enclosure operation should still verify worst-case Tj in their thermal model.
合规信息
Per Microchip product page and datasheet DS39637E, PIC18F4585T-I/PT is RoHS compliant, lead-free, halogen-free, and JEDEC J-STD-020 MSL-3 rated. AEC-Q100 qualification not available for this part; for AEC-Q100 automotive, refer to PIC18 K-series automotive grades.